Got compilation errors running the basic example about goa

[raphael]

The code generation algorithms do their best efforts to compute the set of needed packages. There seems to be a few missing here and I'll create a PR shortly to address them. The case of "too many" imports is harder to deal with (sometimes fmt is needed sometimes it's not depending on how the types are defined in the DSL). There is logic that should detect whether it's needed though - looks like it's missing a case.

While the generator code strives to generate the right imports (and if it doesn't it's generally a bug like the cases above) the saving grace is the use of goimports. Once the generator is done it invokes goimports on the files which both fixes up the formatting and the import clauses. I'm guessing that's why nobody else has reported these issues. So TL;DR it looks like for some reason goimports is not working properly here. Could you describe a little bit your Go setup? do you have multiple GOPATH? is goimports installed and in the PATH?

[manell]

goimports was not installed. I've installed the package running
go get golang.org/x/tools/cmd/goimports and now it's working.

Thanks for your time!

[raphael]

Great, thanks for confirming. I'll still update the generators code so they add the missing imports explicitly.

[raphael]

Added the missing imports and an explicit check for goimports in goagen so that this shouldn't happen anymore.